From: Vineeth <vneethv@gmail.com>
To: linux-embedded@vger.kernel.org, linuxppc-embedded@ozlabs.org,
linuxppc-dev@lists.ozlabs.org
Subject: Timer interrupt on Linux 3.0.3
Date: Fri, 16 Sep 2011 17:13:06 +0530 [thread overview]
Message-ID: <CAFbQSaD-c=QqSsq__VtBEcMCJabnBi4AP4KunDNV7u7xXAuaTw@mail.gmail.com> (raw)
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Hi,
We are porting Linux on MPC7410 based board. As there was some issue with
the processor DECrementer and timebase registers, we were using an external
count down timer as our DECementer. We used timer_interrupt() function in
arch/powerpc/kernel/time.c as our interrupt handler. Things were working
fine.
lately we moved to Linux 3.0.3. What we found was even without a proper
timer, the kernel with initramfs worked (except the calls like sleep,delay
ofcourse); Is there any major difference in the scheduler ? or the way
context switch happens ? is it not depended on the timer interrupt or the
timer ??
Thanks
Vineeth
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next reply other threads:[~2011-09-16 11:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-16 11:43 Vineeth [this message]
2011-09-16 17:03 ` Timer interrupt on Linux 3.0.3 Scott Wood
2011-09-21 6:56 ` Vineeth
2011-09-21 19:41 ` Scott Wood
2011-09-22 6:22 ` MohanReddy koppula
2011-09-26 9:11 ` Vineeth
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